John mo en



JOIIN MOHN, 0F DETROIT, MICHIGAN.

Letters Patent No. 66,242, dated July 2, 1861'.l

IMPROVBD RAILWAY GIIAIR.

itin segnali nicht tu im tiges ttttets @anni mit mating niet at thesans.

TO WHOM IT MAY CONCERN:

Be it known that I, JOHN MOH-N, of Detroit, in the county of Wayne, andState ot' llllichigan, have invented. an, ImprovedlRailroad Joint; and Ido hereby declare the following to be a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,makingpart of this speeiiication, in which- Figure 1 is a top view of myimproved rail joint.

Figure 2 is a transverse section, taken in the vertical planes indicatedby the course of the red lines a: ai, fig. 1.

Figure 3 is a perspective view showing the chair spiked down upon across-tie ready for receiving the ends of two sections of rail.

Figure 4 is a perspective view of an auxiliary supportingandholding-down plate for the ends o f the rail sections.

lSiinilarletters of reference indicate corresponding parts in theseveral figures.

This invention relates to an improved mode of protecting railroadsections at their joints, and preventing the ends of the sections ofrail from springing from their-seats, or being crushed or battered downby the concussions incident" to the passing and 1re-passing of trainsover-them. Y

The nature of my invention consists in so constructing a railroadrailchair that it shall afford a solid support for the ends of the railsections, prevent said ends from lateral displacement, aiord a means forholding the rail ends down firmly in place, -form a portion of the headof theV rails at the ends thereof, and also receive a supportingiplatewhich breaks joints with the rail joint.; vall as will be hereinafterdescribed.

The invention further consists in adapting one of the side supportingplates for the rail joint to serve also as'a capping-plate for thespikes which hold the ruil chairl down to its cross-tie, and therebyprevent the said spikes from working loose, as will be .hereinafterdescribed.

The invention further consists in constructing upon the rail chair anelevated portion, which, when recessed into the ends of the railsections, shall breakjoints therewith and serve as a means forsupporting :and receiving the shocks of the rolling load, and preventingthe crushingor lamina-ting ofthe rail at its joints,`as will behereinafter described.

' To enable others skilled in the art to understand my invention, I willdescribe its construction and operation.

Inthe accompanying drawings, A A represent the ends of two rail sectionswhich are supported, protected, and held down upon the cross-tie C by myimproved method. A rectangular piece is cut out of each end ofeaeh railsection by making a vertical longitudinal cut for ashort distance intothercen'tre of the end of each rail, and thenaemoving' the piece by atransverse cut, so as to leave a rectangular recess b b', when the endsof the twG sections are brought together, as shown in iig. 1. Each endof each rail section should have a piece cut out of it, as above shown,so that when the sections are laid down upon the cross-ties the recessesat their ends will be on the inner sides of the rails. 1B represents therail chair, intoa groove, in which the ends of the rail sections fit, sothat the vertical longitudinal tacos Zn of these sections shall abutsnugly against the corresponding face b of an elevation,=fa,'of thechair B. It is not designed to have the ends of the rail sections to iittightly between the elevations a and K on both `sides of thelongitudinalgroove, but to employ a separate plate, c, with a head, e',formed `on it for clamping and holding thejoi'ntagainst lateral motion.The base plate of the chair Il is extended out laterally from theoutside of the rail'joi'nt, and its edge terminates in a raised lip, a',the inner edge of which is or should be parallel to the faces of theelevation a. Between this lip al and the outer edge of the supportingplate c a wedge-key, `is`drlven, as shown in iigs. 1 and- 2, for thepurpose of forcibly pressing said plate c against the sides of the railsections, and thus clamping them firmly. To prevent this key f frombecoming loose the set-screw g may be used. Plate c is designed to serveas a means for holding the ends of the rail sections A A down firmlyupon the base of the chair B, for which purpose that end of this platewhich abuts against the rails is made 4to conform to the side thereof,as shown in figs. and 4Q Forlholding the plate c down in place I'usescrew-bolts e e, which pass through oblong holes d d made through thisplate and screw into the chair base. The chair B is secured down uponthe cross-tie C by means of tive spikes t h, z'z'z, the latter three ofwhich passthrough the -ilat portion k of the chair base, and have theirheads countersunk therein, so as to be liush with its surface, as shownin iig. 3, so that when the plate c is applied these spikes will` hecovered and prevented from drawing out or working loose.

It will he seen from the above description that the'elevated portion a,which is eonstruetedA upon the chair buse, fills up the recess left bythe rornoval'of portions of the rail sections, and forms a. spliceforlthe joint, and also a portion of the rail table. In practice thiselevation a will be faced with steel, so es to rend'ert more durable andless liable to be `crushed. I am aware that it is not new to splice railsections at their joints, by euttingout portions of such sections andinserting plates which breek joints with the rail joints. Suchplnt'esrequire to be secured-to' the rails by trzinsvers'e bolts, which areconstantly working loose. By my invention the rails are made muchstronger and more durable at the joints than nt-'anyother point, bytransferring the weight and shocks of the rolling loa-d from the railsto the solid chair-pieces a :it every joint.

What I claim as new, and desire to secure by Letters Patent, is

1. A railroad chair which is constructed with u solid portion, a,:L'slotted base, j, an elevated table, K, and an abutting lip, a',adapted for receiving the notched rail-sections A A, a supporting andcovering plate, c c',

`and a key, f substantially as described.

2. The mode herein described of securing the chair by means of thespikes t' z' for the purpose set forth. 1 JOHN MOHN. Witnesses JOSEPHKUHN,

J. F. RAUB.

